PSL300H1 Study Guide - Final Guide: Reticular Formation, Adrenergic, Homeostasis

• School: UTSG
• Department: Physiology
• Course: PSL300H1
• Professor: Dr.Buchan, Dr.Kee, Dr.Tweed

Document Summary

Overview and general features of autonomic nervous system (ans: parasympathetic nervous system (pns) In the last three lectures, we examined reflexes, involuntary movements, and the somatic nervous system. We(cid:859)ll fo(cid:272)us o(cid:374) the an general overview and feature, disse(cid:272)ti(cid:374)g i(cid:374)to the n a(cid:374)d pn . We(cid:859)ll go i(cid:374)to auto(cid:374)o(cid:373)i(cid:272) refle(cid:454)es, si(cid:373)ilar to the series of so(cid:373)ati(cid:272) le(cid:272)tures. We(cid:859)ll e(cid:374)d with the brainstem autonomic centres that coordinates the whole thing. Overview and general features of autonomic nervous system (ans) Ans is part of the cns that controls internal organs, blood flow, smooth muscles of the eye, viscera, etc. Sympathetic fight-or-flight: parasympathetic rest and digest. Works with endocrine and behavioural state systems to maintain homeostasis. Deals with more tha(cid:374) just (cid:862)fight-or-flight(cid:863) emergencies: exercise, emotion, effect of gravity, eating, etc. The ans used to be thought of as an involuntary nervous system, separate fro(cid:373) the so(cid:373)ati(cid:272) s(cid:455)ste(cid:373) (cid:894)(cid:448)olu(cid:374)tar(cid:455) (cid:272)o(cid:374)trol of skeletal s(cid:455)ste(cid:373)(cid:895).